dicyclohexyl(2',4',6'-triisopropyl-5-methoxy-3,4,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; C50H70NO4PPdS; C50H70NO4PPdS; dicyclohexyl(2',4',6'-triisopropyl-4-methoxy-3,5,6-trimethyl-[1,1'-biphenyl]-2-yl)phosphine; ammonia; sodium t-butanolate in 1,4-dioxane T=100°C; 24 h; Inert atmosphere;

iron; ammonium chloride

2: Fe, aq. NH4Cl View Scheme

1.1: sodium peroxoborate tetrahydrate / acetic acid / 2 h / 55 °C 2.1: hydrazine hydrate / 1,2-dichloro-ethane; ethanol / 28 h / 0 - 20 °C 3.1: sodium hydrogencarbonate / toluene / 20 h / 20 °C 4.1: lithium tetrachloropalladate / 3 h / 60 °C 4.2: 2 h / 20 °C View Scheme